Rhamnus alaternus 'Argenteovariegata'
Rhamnus carolinianus
Rhamnus cathartica
Rhamnus frangula 'Asplenifolia'
Rhamnus frangula 'Fastigiata'
Rhamnus imeritinus
Rhaphiolepis delacourii
Rhaphiolepis umbellata
Rhododendron arborescens
Rhododendron atlanticum
Rhododendron 'Bernstein'
Rhododendron 'Blueshine Girl'
Rhododendron bureavi 'Hybride'
Rhododendron campanulatum subsp. aeruginosum
Rhododendron 'China'
Rhododendron 'Cowslip'
Rhododendron 'Cunningham's White'
Rhododendron decorum
Rhododendron fortunei
Rhododendron 'Goldkrone'
Rhododendron loderi 'King George'
Rhododendron loderi 'Pink Diamond'
Rhododendron loderi 'Venus'
Rhododendron makinoi 'Fuju-kaku-no-matsu'
Rhododendron makinoi 'Rose Perle'
Rhododendron 'Mikado'
Rhododendron 'Milton'
Rhododendron 'Moonlight'
Rhododendron 'Mrs AT de la Mare'
Rhododendron 'P.J. Mezitt'
Rhododendron pachysanthum
Rhododendron 'Persil' (AZ)
Rhododendron ponticum
Rhododendron 'Queen Elizabeth'
Rhododendron 'Rothenburg'
Rhododendron 'Sappho'
Rhododendron schlippenbachii
Rhododendron 'Schneewolcke'
Rhododendron 'Soir de Paris'
Rhododendron sutchuenense
Rhododendron vaseyi
Rhododendron viscosum
Rhododendron williamsianum
Rhododendron yakushimanum
Rhododendron yakushimanum 'Grumpy'
Rhododendron yakushimanum 'Koichiro Wada'
Rhododendron yakushimanum 'Marietta'
Rhododendron yakushimanum 'Schneewolke'
Rhododendron yakushimanum 'Silberwolke'
Rhodotypos scandens
Rhus copallina
Rhus glabra
Rhus potaninii
Rhus succedena
Rhus trichocarpa
Rhus verniciflua
Ribes alpinum
Ribes 'Jonkheer van Tets' (rode bes)
Ribes laurifolium
Ribes odoratum
Ribes rubrum 'Rovada'
Ribes sanguineum 'King Edward VII'
Ribes speciosum
Ribes 'Tittania' (zwarte bes)
Ribes 'Witte Parel' (witte bes)
Robina margaretta 'Casque Rouge' (x)
Robinia hispida
Robinia pseudoacacia
Robinia pseudoacacia 'Bessoniana'
Robinia pseudoacacia 'Frisia'
Robinia pseudoacacia 'Myrtifolia'
Robinia pseudoacacia 'Tortuosa'
Robinia pseudoacacia 'Unifolia'
Romneya coulteri
Rosa 'Ballerina'
Rosa glauca
Rosa 'Marie Pavic'
Rosa 'Nevada'
Rosa 'Snow Pavement'
Rosa woodsii
Rubus cockburnianus
Rubus flagelliflorus
Rubus henryi
Rubus ideaus 'Zefa Herbsternte'
Rubus illecebrosus
Rubus parviflorus
Rubus peltatus
Rubus phoenicolasius
Rubus setchuanensis
Rubus thibetanus 'Silver Fern'
Rubus 'Thornless Evergreen'
Rubus tridel 'Benenden'
Ruscus aculeatus
Ruscus aculeatus 'John Edmond' ®
Ruscus hypoglossum